Disk harrow.



W. G. KING.

DISK HARROW.

APPLICATION FILED OCT. 19, 1908.

Patented Apr. 6, 1909.

2 BKBETB-SHEET 1.

. WITNESSES.-

INVENTOR William C BY ATTORNEY.

W. 0. KING.

DISK HARROW.

APPLICATION FILED 0G'I'.19, 190s.

Patented Apr. 6, 1909.

2 SHEETS-SHEET 2.

ATTORNEY.

30 which a shaft is turnable.

WILLIAM 0. KING, OF CAMPBELL, CALIFORNIA.

DISK HARROW.

Specification of Letters Patent.

Patented April 6, 1909.

Application filed October 19, 1908. Serial No. 168,411.

disk harrow.

it consists 1n the combination of mechan ism, and in details of construction which will be more fully explained by reference to the accompanying drawings, in which Figure 1 isa perspective view of the harrow. F1g. 2 1s a plan. Fig. 3 IS a detail section of the stay rope,

The frame of my machine consists of side bars A and B, and transverse front and rear end bars C and D bolted thereto to form a rigid structure." One of the frames B has the rear portion of its length curved on an arc of a circle, of which a point on the opposite frameA isthe center. Each of these frames has mounted upon it a turntable, one being mounted upon the frame A, and the other, 3, upon the frame B. From these tables, arms or standards 4 extend downwardly, and in their lower ends are journal-boxes within Upon this shaft a series of concavo-convex disks 6 are'iixed these disks being ofany suitable or desired number, and extending across the machine from one side to the other, "as shown in my former patents dated Sept. 25, 1906, No.

831,789 and Jan. 29, 1907, No. 842,671.

- Upon the front ortion of the frames A and B are tables 7 an 8, these having standards 9 extending downwardly, and upon these .40 standards are supported the shafts of two independent series ofplow disks 10 and 11, The front shaftsare independently turnable with the tables 7 and 8 as a center of turning.

, The rear zshaft' is continuous, and is turnable about the axis 2 as its center of oscillation consequently the part 3 is, slidable u on the are E ofthe frame B, so that the en of the shaft andthe disks upon that side are moved 1 in a1 corresponding arc, while the ones contiguous to the pivot point are turned unison with the outer ones, but have a very small absolute travel.

The tables, both front and rear, are all operated in unison as follows: The front tableshave arms 12 projecting transversely to the line of travel of the machine. The

table 8 upon the left side'of the machine has a single arm, while the table 7-upon the right side has two arms for a purpose to be hereafter described, 13 is a shaft journaled in boxes upon the frame A and B, and this shaft has rocker-arms 14: carried by it. are connecting rods or pitmen, uniting the ends of the rocker-arms, with the projecting arms 12 ofthe tables 7 and 8, sothat by rocking the shaft 13 it will be seen that being connected with the arm s,;-which project in the same direction, the shaftsof both sets of disks 10 and 11 will be turned in thezsame direction, and the angle at which the disks enter the ground will be substantially the same. to invert the disks 11 to one side so that both in some cases it may be desirable 7 sets of disks will present their concaved faces outwardly. This is for the purpose of separating earth, as where there are irrigating ditches, and it will be seen that the two sets of disks working outwardly will both throw the dirt outwardly instead of in the same direction. This is effected byturnin'g the table 7 a half; revolution so that the second arm 12 may be brought into linewith the I pitman 15 and connected with it afterwhijch theturning of the disks and their-shafts will be effected in the same manner as when the plow-disks all face in the same direction. In order to rotate the shaft 13, and tofpro-v vide for these movements,l have shown ahand-lever 16 keyed or otherwise fixed to the shaft 13 having its upper end within. easy reachof the operator, who mayride upon the seat as shown at 17. In order to move the outer end 0f the-irear disk shaft,.l,l have shown a rocker-arm 18 also fixed to the shaft 13, and a connecting rod or pitman 19 extends from this rocker arm to a box upon the slide 3 so-that when the lever 161s moved,

this part will oaused'to slideupon the arc B of the side frame,. "and the whole length of the disk shaft. 5,;with its disks, will be correspondingly'moved, and in unison with the --rnovements of the two series of front disks. In? order to allow for these movements, 1

have shown the tables 2, 7 andYS'carried by the frame, as made in two arts, one fitting above the frame and b0 ted thereto, as shown in the table 2. The, lower portion forms an independent disk 2* which is turn-- able with relation to the upper part 2, and is united-thereto by-bolts 20 passing through curved slots 21 made ih'the upper part and concentric with the'center of thetable so that the bolts may travel loosely in the slot to allow the lower part 2*, which carries the pendent turning movement ofits two parts. In order to properly support and stay the.

. outer end of the shaft 5 in its swinging movepreviously described, and at the same timemoves the left end of the rear shaft 5 forwardly on the arc B.

ment, I have shown a flexible connection 22 one end of which is fixed to a box loosely turnable upon said shaft, and the other end passes over a quadrant23 which iscarried and turnable with a shaft 13. When the lever 16 is thrown forward, it turns the two forward shafts and their plowing disks, as

q The quadrant'23 is so proportioned that, turning-with the shaft 13, it just takes up any slack of the chain22,

and thus maintains a' bearing and support for the shaft. 5. The rearward movement of the lever 16 reverses these operations, and.

correspondingly lengthens the chain to accommodate the rearward movement of the In my present apparatus I-have shown the pole 24 as connected with a draft bar 25 which is j ournaledso as to swivel in boxes 26 whieh are fixed to the front to frame C, so that the draft is in line with t. 1e upper part of the apparatus, instead of being connected at a point b,elow, and more nearly in l ne with the axes of the plowing disksQ I have found the present device serves to steady the action of the machine, and to prevent the front portion from lifting when the power is applied to move it. i Q

Having thus described my invention, What I claim and desire to secure by Letters Patent 1. In an apparatus of the character described, a frame Iplowing disks, independent isks are The slide 3 traveling upon theported, a continuous rear shaft with plowing disks, a horizontal turning table on one of the side frames forming a support and pivot for the plow shaft, an arc and a slide movable there on, from which the opposite end of the plow shaft is supported, said are having its center in the opposite side frame, a shaft journaled upon the frame with rocker-arms, and connections between the vrocker-arms and the tables whereby said tables and the plow shafts are turned in unison.

2. In an apparatus of the character described, a main frame with horizontally turnable tables, plowing disk shafts, sup orted from and turnable with the front ta les, a continuous rear plow-shaft, a turning table from which one endis supported, an arc and a traveling. slide fromwhich the oppositeendis supported, a rock-shaft, arms and connections' with the movable-tables and slide, a quadrant carried on said shaft and a flexible connection between the quadrant and the rear plow shaft. v I f v 3. In ail-apparatus of the character described, a main frame, a shaft carrying plowing disks having a swivel journal support atone end, and a traveling support for the opposite end, a shaft on'the frame with a rocker-arm and connection with the traveling end of the shaft, a quadrant mounted on the rockwshaft turnable with the rocker-arm, and a flexible connection between the quadrant and shaft, to support and brace the shaft.

4. In an apparatus of the character 'described, a cultivating disk-carrying shaft, having a swivel support for one endfand a, slidably traveling support for the opposite end, a rock-shaft and connections to advance or retract the movable end, an intermediate bearing for the shaft, a quadrant turnable in unison with the rocker-arm, and a connection between the quadrant and said bearing,

whereby the bearing is moved in unison with the outer end to rigidly support the intermediate portion of the shaft.

In testimony whereof I have hereunto set I my hand in presence of two subscribing wit nesses.

. WILLIAM 0. KING. Witnesses: ,lldATHIAS PEDERsoN, LIH. BALwrcK. 

